revive/rpc: Adjust the RPC to utilize the ETH block from storage (#9512)

This PR adjusts the RPC layer of pallet-revive to use Ethereum blocks
from storage via runtime APIs and establishes proper Ethereum ↔
Substrate block hash mappings.

## Key Changes

### Block Hash Mapping Infrastructure
- **New database table**: `eth_to_substrate_blocks` maps Ethereum block
hashes to Substrate block hashes and block numbers
- **Bidirectional lookups**: Support for both ETH→Substrate and
Substrate→ETH hash resolution with backward compatibility fallbacks
- **Block pruning**: Updated to remove stale mappings alongside
transaction and log data

### Pallet Changes

- **Genesis block initialization**: Added
`block_storage::on_finalize_build_eth_block()` call in
`BuildGenesisConfig` to properly build and store block 0

## Testing

- Added comprehensive tests for block hash mapping operations
- Ethereum vs Substrate hash resolution tests
- Fork handling in block pruning tests
- Log filtering with Ethereum block hash tests
- TransactionInfo deserialization from JSON Value tests

## Implementation Details

The implementation uses a **runtime API approach** where the RPC layer
queries the runtime for Ethereum blocks and hashes, which are then
mapped to Substrate block hashes in the local SQLite database. This
provides:

1. **Backward compatibility**: Falls back to treating hashes as
Substrate hashes when no mapping exists
2. **Efficient lookups**: Database indices on both Ethereum and
Substrate block hashes
3. **Automatic cleanup**: Block mappings are pruned alongside
transaction and log data
4. **Genesis block handling**: Block 0 is built during genesis using the
block storage infrastructure

Builds upon: #9418
Part of: paritytech/contract-issues#139

---------

Signed-off-by: Alexandru Vasile <[email protected]>
Co-authored-by: Lukasz Rubaszewski <[email protected]>
Co-authored-by: cmd[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: PG Herveou <[email protected]>

Author: 4 people

prdoc/pr_9512.prdoc

@@ -0,0 +1,41 @@
+title: 'frame/revive: ETH block storage'
+doc:
+- audience: Runtime Dev
+  description: |-
+    This PR adjusts the RPC layer of pallet-revive to use Ethereum blocks from storage via runtime APIs and establishes proper Ethereum ↔ Substrate block hash mappings.
+
+    ## Key Changes
+
+    ### Block Hash Mapping Infrastructure
+    - **New database table**: `eth_to_substrate_blocks` maps Ethereum block hashes to Substrate block hashes and block numbers
+    - **Bidirectional lookups**: Support for both ETH→Substrate and Substrate→ETH hash resolution with backward compatibility fallbacks
+    - **Block pruning**: Updated to remove stale mappings alongside transaction and log data
+
+    ### Pallet Changes
+
+    - **Genesis block initialization**: Added `block_storage::on_finalize_build_eth_block()` call in `BuildGenesisConfig` to properly build and store block 0
+
+    ## Testing
+
+    - Added comprehensive tests for block hash mapping operations
+    - Ethereum vs Substrate hash resolution tests
+    - Fork handling in block pruning tests
+    - Log filtering with Ethereum block hash tests
+    - TransactionInfo deserialization from JSON Value tests
+
+    ## Implementation Details
+
+    The implementation uses a **runtime API approach** where the RPC layer queries the runtime for Ethereum blocks and hashes, which are then mapped to Substrate block hashes in the local SQLite database. This provides:
+
+    1. **Backward compatibility**: Falls back to treating hashes as Substrate hashes when no mapping exists
+    2. **Efficient lookups**: Database indices on both Ethereum and Substrate block hashes
+    3. **Automatic cleanup**: Block mappings are pruned alongside transaction and log data
+    4. **Genesis block handling**: Block 0 is built during genesis using the block storage infrastructure
+
+    Builds upon: https://github.com/paritytech/polkadot-sdk/pull/9418
+    Part of: https://github.com/paritytech/contract-issues/issues/139
+crates:
+- name: pallet-revive
+  bump: minor
+- name: pallet-revive-eth-rpc
+  bump: major

substrate/frame/revive/Cargo.toml

@@ -41,7 +41,8 @@ rand_pcg = { workspace = true, optional = true }
 revm = { workspace = true }
 rlp = { workspace = true }
 scale-info = { features = ["derive"], workspace = true }
-serde = { features = ["alloc", "derive"], workspace = true, default-features = false }
+serde = { features = ["alloc", "derive"], workspace = true }
+serde_json = { features = ["alloc"], workspace = true }
 
 # Polkadot SDK Dependencies
 bn = { workspace = true }